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Yatsuka Takata
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Chita, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Bearing steel
Patent number
5,403,545
Issue date
Apr 4, 1995
Aichi Steel Works, Ltd.
Yatsuka Takata
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of purifying a bearing steel
Patent number
4,702,767
Issue date
Oct 27, 1987
Aichi Steel Works, Ltd.
Yatsuka Takata
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Bearing steel and method of manufacturing the same
Patent number
4,642,219
Issue date
Feb 10, 1987
Aichi Steel Works, Ltd.
Yatsuka Takata
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...